Blurred PNGs on UIView, using Interface Builder

Question

Hey everyone,

I've added some UIImageViews with png images to my view, using interface builder. Initially they are added off-screen.

Later, I animate them onto the screen with CoreAnimation, like so:

[UIView beginAnimations:@"slide" context:nil];
[UIView setAnimationDuration:0.1f];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationDelegate:self];
image.frame = CGRectMake(81+1, 390, 150, 80);
[UIView commitAnimations];  

Once they appear onscreen, they look really blurred or fuzzy.

I've heard of this happening before. Does anyone have any idea how to fix it?

Answer 1

Usually this means that you are positioning the views at fractional pixel values (e.g. 100.5). Make sure you round the coordinates of the position.